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What is the Least Common Multiple of 18600 and 18618?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 18600 and 18618 is 57715800.

LCM(18600,18618) = 57715800

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Least Common Multiple of 18600 and 18618 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18600 and 18618, than apply into the LCM equation.

GCF(18600,18618) = 6
LCM(18600,18618) = ( 18600 × 18618) / 6
LCM(18600,18618) = 346294800 / 6
LCM(18600,18618) = 57715800

Least Common Multiple (LCM) of 18600 and 18618 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18600 and 18618. First we will calculate the prime factors of 18600 and 18618.

Prime Factorization of 18600

Prime factors of 18600 are 2, 3, 5, 31. Prime factorization of 18600 in exponential form is:

18600 = 23 × 31 × 52 × 311

Prime Factorization of 18618

Prime factors of 18618 are 2, 3, 29, 107. Prime factorization of 18618 in exponential form is:

18618 = 21 × 31 × 291 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 18600 and 18618.

LCM(18600,18618) = 23 × 31 × 52 × 311 × 291 × 1071
LCM(18600,18618) = 57715800